Paleogeography modulates marine extinction risk throughout the Phanerozoic.

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Autori principali: Malanoski, Cooper M, Finnegan, Seth, Huang, Edward C, Blake, Lila, Mac Niocaill, Connal, Saupe, Erin E
Natura: Artículo científico
Lingua:en
Pubblicazione: Science (New York, N.Y.) 2026
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author Malanoski, Cooper M
Finnegan, Seth
Huang, Edward C
Blake, Lila
Mac Niocaill, Connal
Saupe, Erin E
author_facet Malanoski, Cooper M
Finnegan, Seth
Huang, Edward C
Blake, Lila
Mac Niocaill, Connal
Saupe, Erin E
Malanoski, Cooper M
Finnegan, Seth
Huang, Edward C
Blake, Lila
Mac Niocaill, Connal
Saupe, Erin E
collection PubMed - marine biology
contents Paleogeography modulates marine extinction risk throughout the Phanerozoic. Malanoski, Cooper M Finnegan, Seth Huang, Edward C Blake, Lila Mac Niocaill, Connal Saupe, Erin E Extinction, Biological Animals Climate Change Aquatic Organisms Biodiversity Oceans and Seas Geography Understanding the factors that have influenced the intensity and selectivity of extinction throughout Earth's history is important for explaining past biodiversity change and forecasting biotic responses to environmental change. Here, we investigated the role of coastline geometry and paleogeographic boundary conditions in shaping extinction risk for shallow-marine taxa over the past 540 million years. We show that interactions between the geographic distributions of taxa and the geometric configurations of continental margins consistently predict relative extinction risk: Taxa with potential dispersal pathways that are long relative to the range of latitude traversed-such as those that occur along east-west-oriented coastlines, islands, or inland seaways-consistently exhibit higher extinction risk than taxa with potential dispersal pathways that provide more direct latitude-traversing paths. This dispersal distance selectivity is amplified during mass extinction events and hyperthermal intervals, suggesting that geographic constraints become more important during periods of rapid climate change. Our results provide another mechanism that potentially contributes to the generally elevated extinction rates during the Paleozoic, an interval characterized by complex inland seas and a preponderance of east-west coastlines. These insights underscore the importance of considering paleogeographic context when interpreting past extinction patterns and provide empirical support for assumptions that underlie extinction risk assessments of extant species.
format Artículo científico
id pubmed_41538453
institution PubMed
language en
publishDate 2026
publisher Science (New York, N.Y.)
record_format pubmed
spellingShingle Paleogeography modulates marine extinction risk throughout the Phanerozoic.
Malanoski, Cooper M
Finnegan, Seth
Huang, Edward C
Blake, Lila
Mac Niocaill, Connal
Saupe, Erin E
Extinction, Biological
Animals
Climate Change
Aquatic Organisms
Biodiversity
Oceans and Seas
Geography
Paleogeography modulates marine extinction risk throughout the Phanerozoic. Malanoski, Cooper M Finnegan, Seth Huang, Edward C Blake, Lila Mac Niocaill, Connal Saupe, Erin E Extinction, Biological Animals Climate Change Aquatic Organisms Biodiversity Oceans and Seas Geography Understanding the factors that have influenced the intensity and selectivity of extinction throughout Earth's history is important for explaining past biodiversity change and forecasting biotic responses to environmental change. Here, we investigated the role of coastline geometry and paleogeographic boundary conditions in shaping extinction risk for shallow-marine taxa over the past 540 million years. We show that interactions between the geographic distributions of taxa and the geometric configurations of continental margins consistently predict relative extinction risk: Taxa with potential dispersal pathways that are long relative to the range of latitude traversed-such as those that occur along east-west-oriented coastlines, islands, or inland seaways-consistently exhibit higher extinction risk than taxa with potential dispersal pathways that provide more direct latitude-traversing paths. This dispersal distance selectivity is amplified during mass extinction events and hyperthermal intervals, suggesting that geographic constraints become more important during periods of rapid climate change. Our results provide another mechanism that potentially contributes to the generally elevated extinction rates during the Paleozoic, an interval characterized by complex inland seas and a preponderance of east-west coastlines. These insights underscore the importance of considering paleogeographic context when interpreting past extinction patterns and provide empirical support for assumptions that underlie extinction risk assessments of extant species.
title Paleogeography modulates marine extinction risk throughout the Phanerozoic.
topic Extinction, Biological
Animals
Climate Change
Aquatic Organisms
Biodiversity
Oceans and Seas
Geography
url https://pubmed.ncbi.nlm.nih.gov/41538453/